Watchcase



March 14, 1944. H. SICKINGER WATGHCASE Filed March 12, 1941 Fig 1-Patented Mar. 14, 1944 WATCHCASE Helmut Sickinger, Pforzheim, Germany;vested in the Alien Property Custodian Application March 12, 1941,Serial No. 382,857 In Germany March 4, 1940 2 Claims.

The invention relates to a, watch-case especially for bracelet watches.

The production of a watch-case as dust-tight as possible and consistingOf two or three parts requires much time owing to the accurate work tobe done and, as this work can be carried out only by a skilled workman,it is also expensive.

As means for tightly closing the watch case accurately turned rims areused, which strongly engage the one into the other by resilient pressingin. The opening, which can only mostly e effected by means of a tool, isdifficult and it happens, that the elements of the case and of theclosure are damaged.

These inconveniences are obviated by the present invention.

The novelty consists in the arrangement of two clamps, bows or the likeadapted to be engaged with opposite sides of the watch case, said clampsor bows pressing the one strongly against the other the elements whichform the watch case, that is for instance the capsule containing thewatch mechanism, and the ring.

By providing a structure according to this invention, the separatingjoint between the capsule and glass ring, and also the joint between thwatch crystal and the glass ring, are closed so tightly that thepenetration of dust is prevented. Furthermore, th opening of the watchcase can be carried out without the aid of any tool by simply removingthe closing clamps.

The watch glass is further additionally secured against falling outafter the closing clamps have been pushed on which, according to theinvention, grip with claws under the rim or bezel of the glass ring.

An embodiment of the invention is illustrated by way of example in theaccompanying drawing, in which Fig. 1 shows a central longitudinalsection and Fig. 2 a top plan view of a watch case composed of twoparts, the closing clamps being not yet pushed into the closingposition,

Fig. 3 a central longitudinal section, and

Fig. 4 a top plan view of the case in finished closed state.

The watch case consists of a capsule l for the watch mechanism and of aglass ring 2 into the edge of which a watch glass 3 is inserted. Thecapsule l with the watch mechanism has an edge 4 in an inward directionover which the glass ring 2 engages.

The tight closing of the watch case comprising the capsule I with thewatch mechanism and the glass ring 2, is effected b the two clamps 5 and6, the free ends of the slightly resilient arms 1 and 8 of the clamps 5and 6 forming claws 9 and Ill. The upper claws 9 of the clamps 5 and 6engage'under and behind the rim or flange ll of the glass ring 2,whereby the resiliently inserted watch glass 3 is additionally securedagainst dropping out of the glass ring. The lower claws [0 of the clamps5 and 6 engage into notches I2 in the bottom of the capsule l. Theabove-mentioned rim or flange ll serves as a frame for the watch crystaland is generally known as a bezel. When the parts are in assembledposition, the claws 9 extend over the edges of the crystal 3 andresiliently hold the crystal in the bezel.

The two clamps 5 and 6 have recesses l3 in their end faces into whichrecesses engage the ends 14 and I5 of the bracelet by means of pins IEor the like and are thus connected with the watch case.

For opening the watch case no special tool is required, it beingsufficient to merely remove the clamps, whereupon the parts of the watchcase can be separated.

I claim:

1. A watch case comprising top and bottom members, the top member havinga bezel with a watch glass therein, the bottom member having notches inthe bottom face thereof, a. pair of clamps adapted to be respectivelyengaged with opposite sides of the top and bottom members, each clamphaving a pair of resilient arms with a claw at the free end of each armrespectively engaged with the bezel of the top member and the notches inthe bottom member, said claws which engage said bezel extending over theedges of the watch glass whereby the glass is resiliently held in thebezel.

2. A watch case comprising top and bottom members, the top member havinga bezel with a watch glass therein, the bottom member having notches inthe bottom face thereof, a pair of clamps adapted to be respectivelyengaged with opposite sides of the top and bottom members, each clamphaving a pair of resilient arms with a claw at the free end of each armrespectively engaged with the bezel of the top member and the notches inthe bottom member, each clamp having a recess in its outer side and awatch bracelet adapted to have its ends secured in the recesses.

HELMUT SICKINGER.

